• 5.0 out of 5 stars

    Used and maintained correctly, excellent! How to...

    • Written by from Waltham

    I have been using the same (original) battery for 8 years. REALLY! No bulging, no problems.
    The unplugged battery life was 3 1/2 to 4 hours for several years, and slowly decreased to about 2 hours now.

    How? Very simple. I always fully charged the battery (100%), then unplugged it and ran my laptop on only the battery until I got either the "battery is low" warning or it ran completely out of juice, more often waiting until the battery died completely. Result: a battery that still works great after 8 years!

    Unplug your computer unless you are charging!!!

    5 of 9 people found this useful

  • 5.0 out of 5 stars

    17-inch MacBook Pro Battery

    • Written by from ANTIOCH

    Don't know if the problem about the expanding battery for the 17-inch MacBook Pro has been fixed, but it recently happened to me after years of loyal services. Love the MacBook Pro, but the battery situation is very un-Mac-like. In any event, I took the Mac and the battery to the Genius Bar today and they reaffirmed why I am an Apple fan and loyalist. After a detailed description about why the battery split its case and expanded to the point of warping the chassis and disabling the trackpad (all in aid of trying to explain why this was not a design flaw), they replaced my battery (no charge, even though that may not have been the policy for the store I went to). The bottomline, according to the Genius at the Bar, is to make sure you cycle the battery (i.e. run it down fully and charge it up) twice a month. I would have taken a star away for the battery, but the service made up for it.

    9 of 15 people found this useful

  • 5.0 out of 5 stars

    Just follow the directions...

    • Written by from Windermere

    Don't leave it charging all the time. If you do, you may as well get a Mac Mini. Yes it will get hot when charging from less than 10%. Let it vent, don't insulate it, like leaving it on a bed or blanket. Still on my second battery. I usually replace every 2 or 3 years. Soon time for a new one. It's down from 4 hours to about 2.5 on a full charge. It's just the nature of compact Li-Ion chemistry. Recycle the old one. My 17" Mac Book Pro is the most rugged, reliable laptop I've ever had. It gets used on construction sites, in vehicles, in hot, dusty or wet environments. Dropped many times. Keeps on going...

    26 of 36 people found this useful

  • 5.0 out of 5 stars

    Great Battery

    • Written by from Mississauga

    I'm really surprised by all the bad reviews. My MBP is mid 2010, and I use it every day, and haven't had to replace the battery yet. It doesn't last as long as before, but I still get three or four hours out of it -- with the brightness turned up, and pretty heavy use. I have had a lot of non-apple laptops, and all of them were useless after about a year.

    7 of 16 people found this useful

  • 5.0 out of 5 stars


    • Written by from west chester

    this battery has lasted nearly four years. i never kept the computer plugged in all the time. i followed the calibration instructions. it has served me well.

    38 of 43 people found this useful

  • 5.0 out of 5 stars

    Excellent !!!

    • Written by from Athlone

    My first battery lasted 4 years. Looked after it only moderately. Have to say a great battery. MacBook Pro is simply the best !!

    6 of 23 people found this useful

  • 5.0 out of 5 stars

    Original bulged, Apple responded

    • Written by from Puyallup

    My 2008-era 17" MBP recently suffered the same fate as many have described here: Battery simply stopped working -- even though all indicators showed battery was fully charged and still fully functional, it wouldn't hold a charge. After less than 3 minutes on battery power, the MBP would hard-shutdown with no warning.

    A couple days later, the trackpad started to act oddly. A few minutes of online research had me checking the physical shape of battery: BULGING in the center. I made an appointment with the "genius bar" at the local Apple store the next day and preceded to dig up, and print out, all similar accounts of this happening. I highlighted all the cases where a local store replaced the battery for free.

    Turns out I didn't need all that research. The Tacoma store genius manager was my first contact and after one look at the battery immediately said, "we'll get you a new one right away." Five minutes later I was out the door with a brand new battery, no charge, no fuss.

    34 of 39 people found this useful

  • 5.0 out of 5 stars

    800 cycles. Follow the directions people.

    • Written by from Decatur

    Batteries DO NOT last forever, regardless of brand, loyalty to brand, or how you worship the moon. Time to replace my current battery. It's 2 years old, and has 807 cycles. And you know what? That's OK. 807 cycles in two years is more than one complete charge and discharge per day. I use my laptop 10-12 to 14 hours per day, all day. I run the battery as much as possible. And when new, I make sure to completely discharge then recharge to 100%. Follow the directions and you will get the expected life. After 700 or 800 cycles - it's time for a new one, no matter the brand. I once purchased an after market battery from a trusted reseller of mac only goods. And you know what? It was worse than the Apple battery. FOLLOW THE DIRECTIONS.

    27 of 61 people found this useful

  • 5.0 out of 5 stars

    bad battery design, but five-star response

    • Written by from Alexandria

    I've had two of the notorious expanding batteries in the past four years, and something's clearly wrong with the design. But Apple's response has been great. Both times they cheerfully gave me a new battery at no charge when I brought the faulty one in to the Genius Bar, even though my MBP was long out of warranty.

    19 of 23 people found this useful

  • 5.0 out of 5 stars

    Battery Issues

    • Written by from Tehachapi

    Yes my battery bulged like a pig also but I've had my mac pro 17" for a couple of years now. It would be nice if Apple would include a life clock for these batteries. When I got the MBP 17 I thought I had read all the info but I guess I missed the battery conditioning but I don't think it matters because mine lasted for years, I did notice though that I only started leaving it plugged in for maybe the last year. Now I've read other reviews about the MBP 17 being worthless without the battery, NOT TRUE I've been using mine flawlessly with out the battery for about the last six months now and it runs just fine. The only fault I can think of is while running on AC only you have to be careful not to bump the magnetic AC plug otherwise you get a hard shutdown.

    33 of 43 people found this useful

  • 5.0 out of 5 stars

    Don't buy a newertech nupower instead

    • Written by from LONDON

    OK the batteries have problems, but my Newertech Nupower only lasted 2 weeks!!!!!! they told me it was my fault because I hadn't 'conditioned it properly' HA HA HA, so PLEASE don't buy a Newertech Nupower instead, the APPLE batteries aren't so bad after all, I'm using one again now.

    25 of 34 people found this useful

  • 5.0 out of 5 stars

    My Battery Ran Strong for 6 Years

    • Written by from Chatsworth

    I'm just now purchasing a new battery for my MacBook Pro, after owning if for 6 years. I am thrilled with the computer and the battery longevity. I only charge it when it's needs it, and I don't leave it on overnight or for days on end (like some of my friends do). I think that's why it's lasted so long.

    I also spoke with a Apple Store employee and she informed me (because I was worried about the new battery life span) that they come with a 1-year warranty. BUT they will test it to make sure it wasn't abused, which I think is smart.

    7 of 13 people found this useful

  • 5.0 out of 5 stars

    Bulging Battery with a great ending!

    • Written by from cosby

    I've had my MacBook Pro for 2 years. This week, in just one day, I noticed the bottom of my laptop bulging out. My tracking pad also seemed to be flatter and not really clicking anymore. I found these reviews and took the battery out right away and scheduled an appointment at the Apple Store in West Town mall, Knoxville TN. Had my appt. today. They told me that those batteries were made by Sony and it's not just an Apple thing. Lot of other computers had the same problem if they had a battery made by Sony. It has nothing to do with your computer getting hot. It's from a bad coil.
    Apple now makes their own batteries, that's why you will see the new computers have a battery life of 7+ hours.
    They told me they will replace your battery with this defect no matter how long you have had your computer or if it's under warranty.
    I was VERY happy! They replaced my battery, plug (not normal, just an extra act of kindness) and a broken key I had on my laptop, all for FREE.

    47 of 59 people found this useful

  • 5.0 out of 5 stars

    MBP Battery

    • Written by from Athenry

    Got the mac Book Pro 2 yrs ago as a Xmas gift Was working great until battery acted up
    after charge only getting 1-1/2.hrs max Have bought new one on line hope to get another 2 yrs it should last if i do the same charge only when it is required and remove battery when working on main power and Drain battery at least once a month

    15 of 24 people found this useful

  • 5.0 out of 5 stars

    Battery life extension

    • Written by from Chino

    I purchased my laptop in July 2007, I have the original battery.
    When it indicates on your screen that the battery "Not Charging" unplug the power and run the laptop on the battery until the percentage is around 10%, then plug in the power adapter.
    Every thing should be OK, and run 10 plus years.

    16 of 26 people found this useful

  • 5.0 out of 5 stars

    Eary MacBook Pro Battery Bulge

    • Written by from Millburn

    I also had the same problem with battery bulge and sudden shut off. Coincidentally, it started occurring approximately two to three weeks BEFORE my 3 year apple care expired. After reading all the posts above, I went to the apple store prepared for battle. To my surprise, they not only replaced my almost three year old battery free of charge, but also gave me another year of warranty (on the battery only). Way to go Apple!

    27 of 31 people found this useful

  • 5.0 out of 5 stars

    Great Battery

    • Written by

    After 3+ years of use my 17" MBP battery bloated. I'll be buying another one ASAP. For 3+ years of daily use it has kept up and worked great. Nothing lasts forever so I'm not too bummed out about it breaking after so long. I put in 10+ hours a day and sometimes have my MBP on 24/hrs a day.

    Use is well and calibrate it every month and you should have a battery that lasts you for years.

    15 of 20 people found this useful

  • 5.0 out of 5 stars

    Excellent battery, great lifetime. 523+ cycles and still going!

    • Written by from Ottawa

    I have had this battery for almost 2 years, and have used it every day.
    I have over 523 full charge cycles on it and am just now starting to notice my battery life degrading. When it was new I would get anywhere from 5.5 to 6 hours out of it. Prior to hitting the 500 cycle mark, I would easily get over 3.5 hours out of it while doing some pretty intensive stuff like games and HD movies. After the 500 cycle mark however, my battery life is dropping to about 1.9 to 2.1 hours. Since most Li-ion batteries are limited to 500 cycles or 3 years, I am rather happy.

    Unfortunately Sony shipped some defective batteries to Apple which is why some people are complaining about expanding battery cases, if that happens, you should contact Apple immediately.

    21 of 32 people found this useful

  • 5.0 out of 5 stars

    i like my mbp :)

    • Written by from Bountiful

    i figure there are all these postings here about angry people because there batteries fail and what not. that sounds frustrating and all but my battery has lasted me years and had no problems. not only that but i can run my laptop in better performance mode and still run all my apps normally for a couple hours or so. good job apple :)

    33 of 60 people found this useful

  • 5.0 out of 5 stars

    Apple 17-inch Macbook Pro battery is high quality

    • Written by from Denton

    For anyone with a negative review on this product I suggest you read the Wikipedia article on Lithium-ion batteries, especially the part about disadvantages, before you declare Apple at fault. The current state of battery technology is disappointing and expensive. Lithium-ion batteries lose about 20% of their capacity per year starting from manufacture, the upshot they are the best weight-to-energy batteries on the market and don't have a memory-effect. Apple has a nice easy to use design that feels solid, and a little LED charge indicator on the bottom. The Apple Genius Bar has replaced defective batteries on the spot.

    129 of 175 people found this useful